Maytag MRT118 Refrigerator — Issues & Fixes
The most common Maytag MRT118 fault is a failed defrost thermostat — about 20% of repairs — which lets a frost wall build in the freezer while the fridge runs warm.
The MRT118 is Maytag's budget 18 cu. ft. top-freezer, sharing its platform with the Whirlpool WRT518 line, so defrost components and the start relay interchange between them. Below are the covered models, the recurring problems, and a repair-or-replace line.
Models covered#
Three variants built from 2016 to 2023 share one platform (and cross-reference with the WRT518):
| Spec | Detail |
|---|---|
| Brand | Maytag |
| Series | MRT118 |
| Type | Top-freezer refrigerator |
| Year range | 2016-2023 |
| Variants | MRT118FFFZ, MRT118FFFH, MRT118FFFM |
| Capacity | 18 cu. ft. |
| Notable features | Up-front temperature controls, gallon door bins, LED lighting, budget entry model |
Do You Have the Right Tools?
Refrigerant gauges ($200+), vacuum pump ($250), leak detector ($150), and EPA-certified recovery equipment. Our technician arrives with $3,000+ in professional tools — your diagnostic is free.
Licensed & Insured · 90-Day Warranty · Same-Day Service
Common problems for this model#
| Rank | Failure | Share of repairs |
|---|---|---|
| 1 | Defrost thermostat fails — frost wall in the freezer, warm fridge | 20% |
| 2 | Start relay clicks — compressor will not start, unit warm | 14% |
| 3 | Door hinge pin wears — the top door sags and the gasket gaps | 10% |
| 4 | Evaporator coil ices over — blocked airflow, uneven temperatures | 10% |
Before you call#
Match the symptom before booking a visit. A frost wall in the freezer with a warm fridge points to the defrost thermostat, heater, or timer — most often the thermostat. Clicking from the back with a cabinet that will not cool is the start relay. A top door that sags and gaps at the gasket is a worn hinge pin, and an iced-over evaporator coil shows up as blocked airflow and uneven temperatures. Because this platform shares its defrost parts and start relay with the Whirlpool WRT518, replacements are easy to source and quick to fit.
Safety First — Know the Risks
Refrigerant (R-134a/R-600a) requires EPA certification to handle. Improper discharge is a federal violation and health hazard. Our techs are licensed and insured — let them handle the risk.
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Recall status#
There are no active recalls on the Maytag MRT118 series as of 2026-05-28. Check your model against the Consumer Product Safety Commission list at cpsc.gov periodically.
Repair or replace?#
For the MRT118: under 10 years old with a fix below 50% of a comparable new unit, repair. After 10 years, weigh recent costs — once repairs over the last 2-3 years exceed 40% of replacement, replace. On a budget top-freezer, the common defrost and relay repairs are inexpensive and almost always worth doing.
The Real Cost of DIY
Average DIY attempt: $150-400 in tools you may use once, plus the risk of further damage. Our diagnostic visit costs $0 — we find the problem and give you an honest quote.
Licensed & Insured · 90-Day Warranty · Same-Day Service
Keeping it healthy#
Hold the fresh-food side near 37 degrees F and the freezer at 0 degrees F, and avoid overloading, since blocked airflow makes the compressor work harder. Clean the condenser coils every 6-12 months and replace the water filter every 6 months if your unit has a filter — those two chores head off most of the common failures above.
FAQ#
How often should I defrost the MRT118?#
You should not have to — the MRT118 is auto-defrost, so a frost buildup means the automatic defrost system has failed rather than needing a manual defrost. Check the defrost thermostat, heater, and timer; the thermostat is the most common culprit, opening early and cutting the defrost cycle short before all the frost melts.
Does the MRT118 share parts with other models?#
Yes — it runs on the same platform as the Whirlpool WRT518 top-freezer line, so the defrost components and the start relay interchange between them. That makes parts easy to source and keeps repair costs down.
The fridge is warm and I hear clicking — what is it?#
Repeated clicking from the back with a warm cabinet is the classic start-relay symptom: the relay cannot get the compressor running. The relay — which interchanges with the WRT518 — is a common, inexpensive replacement that restores cooling.
Don't Void Your Warranty
Opening your appliance yourself may void the manufacturer warranty. Our repair comes with a 90-day guarantee, and we document everything for warranty compliance.
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Book a Maytag MRT118 repair#
We service Maytag refrigerators across Sacramento and the Bay Area, and our techs carry the common MRT118 parts, so most repairs finish in a single visit. Book your repair for same-day or next-day service, upfront pricing, and a 90-day parts-and-labor warranty.
Senior Appliance Repair Technician · 15 years experience
EPA-certified technician with 15 years of experience specializing in refrigerator and cooling system repairs.


