Temperature Controller Service
Precise temperature control for consistent finish quality
Function
Monitors booth temperature via sensors and controls heating/cooling systems to maintain setpoint for spray and cure cycles
Location
Mounted on control panel, with sensors located in supply air stream and booth interior
Typical Lifespan
15-20 years for quality controllers; may need calibration
Service Options
Signs of Temperature Controller Failure
What Causes Temperature Controller Failure
Understanding the root cause helps determine whether repair or replacement is the best option.
Sensor Failure
commonTemperature sensor (thermocouple or RTD) has failed or drifted.
Calibration Drift
occasionalController calibration has shifted over time.
Relay Failure
occasionalOutput relay that controls burner has failed.
Controller Board Failure
occasionalInternal electronics have failed.
Wiring Problems
occasionalPoor connections causing intermittent operation.
Repair vs. Replace Decision Guide
Repair When...
- Sensor can be replaced separately
- Calibration can restore accuracy
- Output relay can be replaced
- Wiring issues can be corrected
Replace When...
- Controller electronics have failed
- Controller is obsolete
- Upgrading to programmable controller
- Adding remote monitoring
- Converting to PLC-based control
Cost Comparison
Sensor replacement $100-400. Controller calibration $150-300. New controller $400-2,000 depending on features.
Lifespan Considerations
Quality temperature controllers last 15-20 years. Modern programmable controllers offer more features and easier troubleshooting.
Brands Using This Component
We service temperature controller across all major paint booth brands.
Honeywell
Watlow
Omron
Eurotherm
Red Lion
Our Temperature Controller Service Process
Diagnosis
Determine if problem is controller, sensor, or connected equipment.
Sensor Check
Test temperature sensors for accuracy and proper connection.
Controller Testing
Verify controller input reading, output operation, and setpoint response.
Calibration
Calibrate or reconfigure controller parameters as needed.
System Test
Verify complete temperature control loop operation through heating cycle.
Temperature Controller Service FAQ
Common questions about temperature controller repair and replacement
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Related Troubleshooting
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WERCS technicians have the expertise and parts to get your temperature controller working properly. 24/7 emergency service available.