Rheem HVAC Error Code 17: How to Fix It
Hard 45-90 minutes for DIY diagnostics; additional time if professional repair is needed Medium Severity
Verified June 2026
- Error Code
- 17
- Brand
- Rheem
- Product Type
- hvac
- Severity
- Medium
- DIY Difficulty
- Hard
- Estimated Fix Time
- 45-90 minutes for DIY diagnostics; additional time if professional repair is needed
Ad
Tools You'll Need
- Digital multimeter with capacitance (µF) and AC amperage measurement
- Clamp meter (for live amperage measurement)
- Capacitor discharge tool or high-wattage bleed resistor
- Insulated screwdrivers (flathead and Phillips)
- Adjustable wrench
- Garden hose with spray nozzle
- Replacement air filter (correct size for your system)
- Flashlight or work light
- Safety gloves and safety glasses
How to Fix Error Code 17
-
Power Down the System Safely
NEVER work on HVAC electrical components with power on. High-voltage capacitors can store a lethal charge even after power is removed. If you are unfamiliar with electrical safety, stop here and call a licensed HVAC technician. -
Check and Reset the Fault Code
Do not reset and restart the system more than 2-3 times without identifying the root cause. Repeated hard starts can accelerate compressor failure. -
Inspect and Clean the Condenser Coils and Filter
Do not use a pressure washer on condenser fins — high pressure will bend the delicate aluminum fins and reduce efficiency. -
Test the Run Capacitor
Capacitors store high-voltage electrical charge and can cause serious injury or death if touched without proper discharge. Use a capacitor discharge tool or a resistor rated for the voltage before touching any terminals. If you are not trained in capacitor handling, call a professional. -
Check Refrigerant Levels
Handling refrigerant without EPA certification is illegal and dangerous. Do not attempt to add refrigerant yourself. -
Inspect Electrical Wiring and Connections
If you see signs of burning or melting, do not restore power. This is a fire hazard requiring immediate professional repair. -
Measure Compressor Amperage
Live electrical measurements should only be taken by individuals comfortable with high-voltage safety. Keep meter leads and hands clear of moving parts and live terminals.
Parts You May Need
Run capacitor
Check Price on Amazon
Contactor relay
Check Price on Amazon
Air filter
Check Price on Amazon
Compressor hard start kit
Check Price on Amazon
Compressor motor
Check Price on Amazon
Run capacitor
Check Price on Amazon
Contactor relay
Check Price on Amazon
Air filter
Check Price on Amazon
Compressor hard start kit
Check Price on Amazon
Compressor motor
Check Price on Amazon
Run capacitor
Check Price on Amazon
Contactor relay
Check Price on Amazon
Air filter
Check Price on Amazon
Compressor hard start kit
Check Price on Amazon
Compressor motor
Check Price on Amazon
Ad
When to Call a Professional
Call a licensed HVAC technician immediately if: the error returns after a reset and the basic checks (filter, coils) did not resolve it; you find burned wiring, a damaged contactor, or melted components; the capacitor tests as failed; refrigerant is suspected to be low; or the compressor amperage exceeds its rated RLA. Compressor replacement and refrigerant handling both require professional certification and specialized equipment. A failing compressor that is run repeatedly can sustain internal damage that turns a repairable situation into a full compressor or system replacement — do not delay calling a pro if DIY steps do not resolve the issue.Frequently Asked Questions
What does Rheem Error Code 17 mean?
Rheem Error Code 17 indicates a compressor over-current fault. This means the compressor motor is drawing more electrical current than its rated limit, which can be caused by a weak run capacitor, dirty coils, low refrigerant, failing compressor windings, or electrical wiring problems.
Can I reset Rheem Error Code 17 myself?
You can attempt a reset by turning off the thermostat, switching off the circuit breaker, waiting 5 minutes, and restoring power. However, if the code returns, a simple reset will not fix the underlying problem. Repeated resets without diagnosing the cause can accelerate compressor damage, so it is important to investigate further or call a technician.
How much does it cost to fix Rheem HVAC Error Code 17?
The repair cost depends on the root cause. A capacitor replacement typically costs $150–$400 including labor. A contactor replacement runs $150–$350. If the compressor itself has failed, replacement can cost $1,200–$2,800 or more depending on the unit size and refrigerant type. Refrigerant recharge typically adds $100–$400. Getting a professional diagnosis first will help you understand which repair is actually needed.
Is it safe to run my Rheem HVAC with Error Code 17 showing?
No, it is not safe or advisable to continue running the system when Error Code 17 is active. Operating the compressor in an over-current condition generates excess heat and electrical stress that can permanently damage the compressor windings, void your warranty, and in severe cases create an electrical fire hazard. Shut the system down and diagnose the issue before restarting.
How do I know if my Rheem compressor needs to be replaced?
Signs that the compressor may need replacement include: the system consistently trips Error Code 17 even after the capacitor, coils, and wiring have been checked and corrected; the compressor's measured amperage exceeds its nameplate RLA rating; the compressor hums but does not start; or a technician confirms failed compressor windings using resistance testing. A licensed HVAC technician can perform a definitive compressor diagnosis.