Heat Pump Reversing Valve and TXV Service in Central Oklahoma
Central Oklahoma runs heat pumps hard. We use them for cooling from April through October and for heating from November through March. A heat pump that works great all summer and then will not heat in January almost always has a reversing valve problem. I have been diagnosing and replacing reversing valves and expansion valves on heat pumps across Kingfisher County for 45 years.
Before I condemn a reversing valve, I always try the mechanical release first at $349. A valve that has been stuck in one position for an extended time sometimes responds to a controlled release procedure without requiring full replacement at $2,047. If the valve is damaged or corroded, replacement is the right call.
Reversing Valve and Expansion Valve Pricing
Sticking Reversing Valve Diagnostic + Coil Check
$454
Full electrical and refrigerant evaluation
Releasing a Sticking Reversing Valve
$349
Mechanical release without full replacement
Reversing Valve Coil Only Special Order
$606
Warranty Reversing Valve Coil Special Order
$463
Reversing Valve Coil + Surge Protection
$855
Warranty Reversing Valve Replacement
$1,376
Reversing Valve + Coil No Refrigerant
$2,047
Warranty Reversing Valve + Leak Test
$1,457
Reversing Valve + Refrigerant Recharge 3.5-5T
$2,533
Reversing Valve with Coil 3.5-5 Ton
$2,050
Minor Refrigerant Restriction Diagnostic
$249
Major Refrigerant Restriction Diagnostic
$349
TXV Cleaning and Adjustment
$445
Piston Orifice Replacement
$395
TXV Replacement Brazed
$795
TXV Replacement Mechanical No Refrigerant
$595
EEV Electronic Expansion Valve Replacement
$1,095
Warranty TXV Replacement Labor Only
$595
Minor Restriction Flush and Flow Bundle
$545
Major Restriction Flush TXV and Drier Bundle
$1,095
Burnout Restriction Recovery Bundle
$845
Diagnosing Reversing Valve vs. TXV vs. Refrigerant Leak
These three problems have overlapping symptoms. Here is how I differentiate: Reversing valve stuck means the system cools when it should heat or heats when it should cool. TXV restriction means suction pressure is low, superheat is high, and subcooling is high with correct refrigerant charge. Refrigerant leak means both suction and discharge pressure are low and capacity declines gradually over weeks or months.
Heat pump not switching between heating and cooling? Call 405-375-4822 for a same-day diagnostic.
Frequently Asked Questions
What does the reversing valve do on a heat pump?
The reversing valve is a four-way refrigerant valve that changes the direction of refrigerant flow to switch the heat pump between heating mode and cooling mode. In cooling mode, the indoor coil acts as the evaporator and the outdoor coil rejects heat. In heating mode, those roles reverse.
How do I know if my reversing valve is stuck?
If your heat pump runs but only cools and will not heat, or only heats and will not cool, the reversing valve is likely stuck in one position. A sticking valve sometimes responds to a mechanical release at $349 without full replacement.
How much does reversing valve replacement cost in Oklahoma?
A full reversing valve and coil replacement without refrigerant work runs $2,047. With refrigerant recharge on larger 3.5-5 ton systems, the cost is $2,533. Warranty replacements run $1,376 in labor. Releasing a sticking valve without replacement is $349.
What is a TXV and how does it cause problems?
The TXV (Thermostatic Expansion Valve) or EXV (Electronic Expansion Valve) meters refrigerant flow into the evaporator coil based on temperature and pressure. A restricted TXV causes low suction pressure, icing at the coil, and a heat pump that runs but does not cool effectively.
Can TXV problems be fixed without replacing the valve?
Sometimes. Minor restrictions in the TXV screen can often be cleared with a flush and adjustment at $445. A piston/orifice system replacement runs $395. A full brazed TXV replacement is $795. Electronic EEV replacement is $1,095.
When do heat pump reversing valves and TXVs fail most often in Oklahoma?
Heat pump reversing valves tend to fail during the shoulder seasons: October when the system first switches to heating, and April when it first switches to cooling.
Serving Central Oklahoma Including:
🔧 Not Sure? There’s a Third Option — HVAC Rebuild
Not every failing system needs full replacement. A rebuild replaces the major components — compressor, coil, refrigerant circuit — at 40–60% of replacement cost. I’ll tell you honestly whether your system is worth rebuilding. 45 years of experience. No pressure.
Ready to Schedule? Call or Book Online.
Call 405-375-4822 or book online. Same-day appointments available when the schedule allows.
9 dispatch fee applies to all service calls. 11 diagnostic credited toward repair or replacement if you accept an estimate within 14 days.