Maytag Refrigerator Repair in Toronto — Not cooling

• The signature 'freezer cold, fridge warm' not-cooling call on modern Maytag French-door and bottom-mount units (MFI/MFF, Whirlpool platform underneath) is a stalled evaporator fan, not a sealed-system fault: these are single-evaporator boxes, so one fan pushes freezer-made cold into BOTH compartments, and when it seizes the freezer holds while the fresh-food side drifts warm. The OEM part is the evaporator fan motor WPW10189703 (AP6016598; replaces W10189703 / W10208121 / 2219647). We spin the blade by hand behind the rear freezer panel and ohm the windings before condemning it, because a frosted-jammed fan and a dead motor look identical until you clear the ice and test continuity.
• A stuck-closed air damper is the other classic 'freezer cold, fridge warm' Maytag not-cooling cause and is distinct from a dead fan: on single-evaporator MFI/MFF units the damper meters how much freezer-made cold reaches the fresh-food section, and when it sticks shut the fridge starves while the freezer stays fine. The genuine Whirlpool/Maytag damper control assembly is the W10151374 family (cross-listed across Whirlpool/Maytag/KitchenAid/Amana). We rule it in by commanding the damper in diagnostic mode (or watching whether it closes when the fresh-food setpoint is raised) so we fit a damper, not a fan, when the airflow path is the fault.
• An iced-over evaporator from a failed defrost circuit presents as not-cooling once the frost slab chokes airflow: the bimetal defrost thermostat WPW10225581 (AP6017375) must close cold to let the defrost heater WP12729128 (AP6005557; replaces 12729128) fire each cycle, and if either opens the coil sheets over and cold stops moving even with a healthy fan. We ring out the thermostat at the coil AND the heater element separately before going downstream - a not-cooling Maytag with a fully frosted back panel is a defrost-circuit verdict, not a compressor one.
• The Whirlpool/Maytag JAZZ main control board WPW10503278 (AP6022400; supersedes W10165748 and 8208187) is the adaptive-defrost timer AND the compressor/fan controller on these platforms, so a bad board reads as not-cooling with no display code: it can mistime defrost, fail to call the compressor, or stop driving the fans, surfacing as 'fridge too warm / freezer too warm / won't start.' Because the board does so much, the honest sequence is to prove the fan, damper, heater, thermostat and thermistor good FIRST, then condemn the JAZZ board - never lead with the most expensive part.
• A drifting thermistor feeds the JAZZ board bad temperature data and makes it run the box wrong, a quiet not-cooling cause on these units: the refrigerator/freezer temperature sensor WPW10384183 (AP6020677; replaces W10384183 / 2118228) reads roughly 2.7k ohms (about 2700 ohms) at room temperature (77F) and rises to about 8k ohms (~7964 ohms) in ice water (36F) as an NTC sensor, and in the board's diagnostic mode a failed sensor shows as OP (open) or SH (shorted) per circuit. We read the diagnostic result and ohm the suspect thermistor against the published R-T spec before touching the board, since an open or shorted sensor mimics a cooling failure while every mechanical part is fine.
• On a LEGACY pre-2007 Maytag-built (Newton/Amana heritage) unit, not-cooling with the compressor clicking every few minutes and a warm box is a compressor start relay/overload failure: the relay tries to boost the compressor, fails, and trips the overload on a loop. The Maytag relay/overload kit 12002784 is the genuine OEM service part for that platform. CRITICAL recall gate: a relay burn smell on a 2001-2004 Maytag-built unit means stop and serial-check against the VERIFIED Mar/Aug 2009 CPSC recall (~1.6M Maytag-built fridges, compressor-relay fire risk) BEFORE any relay work - the era and the recall, not the badge, govern this repair.
• Era check governs the entire not-cooling diagnosis on Maytag: a post-acquisition MFI/MFF is a Whirlpool platform wearing a Maytag badge - WPW10189703 fan, W10151374-family damper, WPW10384183 thermistor, JAZZ board, electromechanical diagnosis, and only the 'PO' power-outage flag surfaced to the homeowner (no true not-cooling fault code). A pre-2007 Maytag-built unit is electromechanical and largely code-less, with the 12002784 relay book and recall exposure. The serial, not the nameplate, decides which not-cooling parts list applies.

Maytag not cooling in Toronto — the local specifics

• The recurring Toronto pattern on Maytag not-cooling is the 'freezer is fine, fridge is warm' single-evaporator complaint on MFI/MFF French-door units - and the recurring lesson is that it splits two ways that look identical on the doorstep: a seized/frost-jammed evaporator fan versus a stuck-closed air damper. We routinely clear an ice load and spin the blade before condemning anything, because a frosted-up fan reads dead until it's thawed. The second recurring pattern is the era trap: a homeowner reports a 'Maytag' that's actually a pre-2007 Maytag-built box clicking and warming, which we serial-check against the 2009 compressor-relay recall before touching the relay.
• We roll to these GTA calls carrying the modern airflow parts that resolve most of them in one visit - evaporator fan motor WPW10189703, the W10151374-family damper control, and the WPW10384183 thermistor - plus the defrost thermostat WPW10225581 and heater WP12729128 for the iced-coil variant. We confirm the model/serial before quoting the JAZZ board WPW10503278, and we do not van-stock the legacy 12002784 relay kit blind: on a pre-2007 unit we serial-check the recall first, then source it.

For the full Maytag refrigerator module — every fault, part number and code — see Maytag refrigerator repair in Toronto, and for the same fault across all brands the refrigerator not cooling guide.