# Commercial Refrigeration Guides | Portland Pros > Plain-language guides on walk-in cooler faults, repair pricing, cold-storage builds, ice machine care, warranty coverage, glycol chillers, and CO2 delivery in Portland. URL: https://commercialrefrigerationrepairportland.com/guide/ 30 guides # Commercial Refrigeration Guides Straight answers to the questions operators actually ask us: why a walk-in stops cooling, how repair gets priced, what a cold-storage build includes, which gas your draft system needs, and when to stop repairing and replace. Written by the team that does the work. ## Refrigeration Repair View service [/commercial-refrigeration-repair/ →](/commercial-refrigeration-repair/) Decision guide ### How Commercial Refrigeration Repair Is Priced (Hourly, Flat, PMA) Hourly versus flat-rate versus maintenance agreements, what actually drives the final number, and the questions to ask before a technician is dispatched. Read guide [How Commercial Refrigeration Repair Is Priced (Hourly, Flat, PMA) →](/guide/how-commercial-refrigeration-repair-is-priced/) Decision guide ### Preventive Maintenance Agreements for Commercial Kitchens What a refrigeration preventive maintenance agreement covers, how often visits should happen, and how the cost compares against emergency repair and product loss. Read guide [Preventive Maintenance Agreements for Commercial Kitchens →](/guide/preventive-maintenance-agreements-commercial-kitchens/) Decision guide ### R-22 Phase-Out & Low-GWP Retrofits: What Oregon Businesses Must Know R-22 and R-404A are phasing down. What EPA Section 608 requires, how Oregon rules fit in, and how to decide between retrofit, repair, and replacement. Read guide [R-22 Phase-Out & Low-GWP Retrofits: What Oregon Businesses Must Know →](/guide/r22-phase-out-low-gwp-retrofits-oregon/) Decision guide ### Repair vs. Replace Commercial Refrigeration Equipment A practical framework for deciding whether to repair or replace commercial refrigeration: age thresholds, refrigerant obsolescence, repair-cost ratios, and downtime risk. Read guide [Repair vs. Replace Commercial Refrigeration Equipment →](/guide/repair-vs-replace-commercial-refrigeration/) Explainer ### Signs Your Commercial Refrigeration Needs Repair Catch commercial refrigeration failures early. The warning signs that show up weeks before a breakdown, and what each one usually means. Read guide [Signs Your Commercial Refrigeration Needs Repair →](/guide/signs-commercial-refrigeration-needs-repair/) Decision guide ### What to Do When Your Walk-In Freezer Temperature Alarm Triggers A step-by-step protocol for the first hour of a walk-in freezer alarm: protecting inventory, documenting temperatures, and knowing when to call emergency dispatch. Read guide [What to Do When Your Walk-In Freezer Temperature Alarm Triggers →](/guide/walk-in-freezer-temperature-alarm/) Explainer ### Why Is My Walk-In Cooler Not Cooling? Walk-in cooler not cooling? The likely causes, the quick checks you can safely do yourself, and when to stop troubleshooting and call for emergency repair. Read guide [Why Is My Walk-In Cooler Not Cooling? →](/guide/walk-in-cooler-not-cooling/) ## Construction & Installation View service [/refrigeration-construction/ →](/refrigeration-construction/) Explainer ### Choosing the Right Size Walk-In Cooler or Freezer Size a walk-in by product volume rather than seat count: the cubic-footage math, cooler-to-freezer split, growth headroom, and urban footprint limits. Read guide [Choosing the Right Size Walk-In Cooler or Freezer →](/guide/choosing-right-size-walk-in-cooler-freezer/) Explainer ### How a Commercial Walk-In Cooler Is Designed and Built Site assessment through commissioning: how a commercial walk-in cooler gets designed, permitted, and built, and what decides the timeline. Read guide [How a Commercial Walk-In Cooler Is Designed and Built →](/guide/how-commercial-walk-in-cooler-is-designed-and-built/) Explainer ### Pre-Purchase Inspection Before Leasing a Commercial Kitchen What a refrigeration inspection covers before you sign a lease or buy a restaurant, the red flags it surfaces, and how it becomes negotiating leverage. Read guide [Pre-Purchase Inspection Before Leasing a Commercial Kitchen →](/guide/pre-purchase-inspection-commercial-kitchen/) Decision guide ### Remote vs. Self-Contained Condensing Units for Urban Kitchens Compare remote and self-contained condensing units on heat, noise, footprint, energy, maintenance access, and install cost for tight urban kitchens. Read guide [Remote vs. Self-Contained Condensing Units for Urban Kitchens →](/guide/remote-vs-self-contained-condensing-units/) Explainer ### Walk-In Dismantling, Relocation & Reassembly When moving an existing walk-in beats buying new, how dismantling and reassembly actually works, and how to plan the downtime around your operation. Read guide [Walk-In Dismantling, Relocation & Reassembly →](/guide/walk-in-dismantling-relocation-reassembly/) Decision guide ### What a Commercial Refrigeration Build-Out Costs and Includes The variables that drive commercial refrigeration build-out cost, what belongs in a full-scope quote, and the line items operators most often forget to budget. Read guide [What a Commercial Refrigeration Build-Out Costs and Includes →](/guide/commercial-refrigeration-build-out-cost/) ## Gas Delivery View service [/commercial-gas-delivery/ →](/commercial-gas-delivery/) Explainer ### Beer Gas Mixes Explained (CO2, Nitrogen, 75/25 Blends) Pure CO2, nitrogen, and 75/25 blends: which pour needs which gas, how blend choice changes foam and carbonation, and how regulators fit in. Read guide [Beer Gas Mixes Explained (CO2, Nitrogen, 75/25 Blends) →](/guide/beer-gas-mixes-explained/) Explainer ### CO2 Delivery for Bars, Restaurants & Soda Systems Where CO2 gets used behind the bar, why food-grade matters, how cylinder sizes and refill cadence work, and how to store cylinders safely. Read guide [CO2 Delivery for Bars, Restaurants & Soda Systems →](/guide/co2-delivery-for-bars-restaurants/) Decision guide ### Cylinder vs. Bulk Gas Delivery: Which Is Right for Your Business Where the crossover point sits between high-pressure cylinders and bulk gas: usage thresholds, storage and siting, cost per unit, and delivery logistics. Read guide [Cylinder vs. Bulk Gas Delivery: Which Is Right for Your Business →](/guide/cylinder-vs-bulk-gas-delivery/) Decision guide ### Emergency Gas Delivery: What to Do When You Run Out Out of CO2 or beer gas mid-shift? Immediate steps, what emergency delivery involves, and the safety-stock setup that stops it happening again. Read guide [Emergency Gas Delivery: What to Do When You Run Out →](/guide/emergency-gas-delivery-run-out/) Decision guide ### How Commercial Gas Delivery Scheduling & Pricing Works Scheduled versus on-demand delivery, how gas pricing is structured, what an account involves, and where our Portland-area coverage reaches. Read guide [How Commercial Gas Delivery Scheduling & Pricing Works →](/guide/commercial-gas-delivery-scheduling-pricing/) Explainer ### Nitrogen, Argon & Specialty Gas for Commercial Use Nitrogen, argon, and oxygen for commercial, lab, and industrial use: what each does, how purity grades work, and when to move from cylinders to bulk. Read guide [Nitrogen, Argon & Specialty Gas for Commercial Use →](/guide/nitrogen-argon-specialty-gas-commercial/) ## Ice Machine Repair View service [/commercial-ice-machine-repair/ →](/commercial-ice-machine-repair/) Explainer ### Commercial Ice Machine Cleaning & Sanitization Schedule How often a commercial ice machine needs cleaning and sanitizing, what each step involves, what health inspectors expect, and the signs you are overdue. Read guide [Commercial Ice Machine Cleaning & Sanitization Schedule →](/guide/commercial-ice-machine-cleaning-sanitization-schedule/) Explainer ### Portland Water Hardness, Scale & Ice Machine Filter Care How local water conditions cause ice machine scale, which filter types address what, how often cartridges actually need changing, and what scale costs you. Read guide [Portland Water Hardness, Scale & Ice Machine Filter Care →](/guide/portland-water-hardness-scale-ice-machine-filter/) Explainer ### Why Your Commercial Ice Machine Stopped Making Ice The most common reasons a commercial ice machine stops producing, the checks you can safely run yourself, and when it needs a technician. Read guide [Why Your Commercial Ice Machine Stopped Making Ice →](/guide/commercial-ice-machine-not-making-ice/) ## Warranty Service View service [/factory-warranty-service/ →](/factory-warranty-service/) Explainer ### Brands We Service Under Factory Warranty (True, Manitowoc, Traulsen, Beverage-Air) The commercial refrigeration brands we hold factory authorization for, how to confirm coverage on your equipment, and where to find model and serial data. Read guide [Brands We Service Under Factory Warranty (True, Manitowoc, Traulsen, Beverage-Air) →](/guide/brands-we-service-under-factory-warranty/) Decision guide ### Warranty Repair vs. Out-of-Warranty Repair: What to Expect How to check warranty status, what coverage usually includes and excludes, and how out-of-warranty repair differs on parts, pricing, and decision-making. Read guide [Warranty Repair vs. Out-of-Warranty Repair: What to Expect →](/guide/warranty-vs-out-of-warranty-repair/) Explainer ### What Factory Authorized Warranty Service Means for Your Equipment What manufacturer authorization actually is, why it protects your coverage, and how authorized service differs from a general refrigeration repair company. Read guide [What Factory Authorized Warranty Service Means for Your Equipment →](/guide/what-factory-authorized-warranty-service-means/) ## Glycol Chiller Service View service [/glycol-chiller-service/ →](/glycol-chiller-service/) Explainer ### Glycol Chiller Maintenance & Fluid Line Care A practical maintenance routine for brewery glycol systems: concentration testing, fluid replacement, line insulation, leak prevention, and pump checks. Read guide [Glycol Chiller Maintenance & Fluid Line Care →](/guide/glycol-chiller-maintenance-fluid-line-care/) Decision guide ### Glycol Chiller vs. Direct-Expansion Cooling for Your Brewery Compare glycol and direct-expansion cooling for brewing on precision, scalability, install cost, energy use, and maintenance, and see which fits your production size. Read guide [Glycol Chiller vs. Direct-Expansion Cooling for Your Brewery →](/guide/glycol-chiller-vs-direct-expansion-brewery/) Explainer ### How Glycol Chillers Keep Breweries and Taprooms Cold How a glycol loop works, what each component does, and why one chiller can hold a dozen different tank temperatures at once in a working brewery. Read guide [How Glycol Chillers Keep Breweries and Taprooms Cold →](/guide/how-glycol-chillers-keep-breweries-cold/) ## Parts & Filters View service [/refrigeration-parts/ →](/refrigeration-parts/) Explainer ### Choosing the Right Water Filter for Your Ice Machine Match filtration to your water condition and machine capacity: what each filter type removes, why sizing matters more than brand, and how to set a change interval. Read guide [Choosing the Right Water Filter for Your Ice Machine →](/guide/choosing-right-water-filter-ice-machine/) Explainer ### Common Commercial Refrigeration Replacement Parts The commercial refrigeration components that fail most often, what each failure looks like from the outside, and how to identify the right replacement part. Read guide [Common Commercial Refrigeration Replacement Parts →](/guide/common-commercial-refrigeration-replacement-parts/) ![](/images/misc/refrigeration-technician-explaining-a-cooler-diagn.webp) 24/7 Emergency Dispatch Available ## Still Have a Question We Haven't Answered? Call our service team. We have been answering commercial refrigeration questions in Portland since 1949. (971) 757-3066 [tel:+19717573066 →](tel:+19717573066) Get a Project Quote [/contact/ →](/contact/) Oregon CCB #65271 Factory authorized, 18+ brands Serving Portland since 1949