“It runs but it is not cold,” and “it will not come on at all” are the two most common warm-weather calls we field, and on a York the no-cool case has a brand-specific trap most contractors miss. This page is the York-specific companion to our general AC repair service and our York AC repair page. Common failure modes have dedicated guides: compressor replacement, refrigerant leak, fan not spinning, leaking water, contactor replacement, and making noise.
Why a York runs but will not cool
- Dirty condenser coil — the most common cause in a heat wave. A coil cleaning plus a capacitor solves more no-cool calls in the Inland Empire than any other repair, often under $400 total.
- YCJF TXV stuck closed (2010–2014 4-ton cohort) — starves the coil and ices the evaporator, reading like a leak. $585–$895.
- Refrigerant undercharge from a leak — not consumed, so low charge means a leak. Detection $245–$485.
- Weak compressor — high amp draw, cannot pull pressures down. Confirmed with gauges before we ever quote one.
- Frozen evaporator coil — ice from a dirty filter, low charge, or the stuck TXV. Shut it off, thaw it, fix the cause.
The full diagnostic walkthroughs are in our AC running but not cooling, why is my AC not blowing cold air, and frozen evaporator coil guides.
The YCJF TXV trap — do not just recharge
On a 2010–2014 YCJF, a coil that ices and cools poorly is most often the cohort TXV stuck closed, not a leak. The valve starves the evaporator of refrigerant, the coil freezes, and head pressures read low — a near-perfect impostor of a refrigerant leak. A contractor who recovers the charge and weighs in fresh R-410A will be back in 48 hours. The actual diagnostic is a steady-state subcooling and superheat reading: subcooling high, superheat low when the TXV is closed off. We have caught this where a prior contractor recharged twice and quoted a compressor — the fix was a $585–$895 TXV. Topping off a system without finding the real cause is a bill that lasts six weeks, and adding refrigerant to a genuinely leaking system without finding the leak is illegal without EPA certification.
Why a York will not turn on
A no-start is usually cheaper than people fear: a tripped breaker, dead thermostat batteries, a failed transformer, a blown 24V control-board fuse, or a contactor welded open. If the outdoor unit hums but the fan will not spin, that is a failed run capacitor — shut the breaker. On a communicating Affinity YZT with a YHCT thermostat, a dark or frozen thermostat can be a bus communication fault rather than a dead AC, and the control board flashes a green/amber/red diagnostic LED. The step-by-step is in our AC not turning on guide; the code reference is on our York error codes page.
Why it fails when it does in SoCal
The microclimate sets the pattern. Inland in Rancho Cucamonga, Fontana, Corona, and Moreno Valley — where the YCJF/TM9V combo blanketed 2005–2015 tract builds — a marginal system that cools fine at 80°F loses the fight at 104°F, and the cohort TXV and weak capacitors show worst under peak load. On the coast in Santa Monica, Manhattan Beach, and Malibu, salt air corrodes condenser electricals earlier. Either way, an annual coil cleaning before summer is the cheapest insurance against a peak-heat no-cool call.
York no-cool repair pricing
Flat-rate, parts and labor, from our SoCal service tickets. Diagnostic is $89 ($149 after-hours), credited to the repair if you proceed:
| York AC repair | Typical cost |
|---|---|
| Diagnostic (waived with repair) | $89 / $149 after-hours |
| Dual-run capacitor | $185–$295 |
| Contactor | $145–$245 |
| Refrigerant leak detection | $245–$485 |
| Condenser fan motor | $485–$795 |
| TXV (YCJF series) | $585–$895 |
| Compressor (out of warranty — we quote replacement) | $2,400–$3,800 |
These are the same flat rates on our York AC repair page. A registered York still carries labor on warranty parts; we confirm coverage before ordering.
Repair or replace
A coil cleaning, capacitor, leak repair, or YCJF TXV is always worth doing. The replace conversation starts at a failed compressor on an older YCJF: a $2,400–$3,800 compressor on a 12-plus-year R-410A system puts you within striking distance of a value-tier replacement after rebates. We model the repair against a written replacement quote so you decide on real numbers. See AC installation when replacement is the call, and the full lineup on our York brand page.