Troubleshooting
82
313997A
T9A6
Red Blanket
Temp. Cutoff
Heater overtemperature cutoff
Alarm
Defective RTD
Replace RTD
T9B5
Blue Blanket
Temp. Cutoff
Alarm
T9A3
Red Inline
Temp. Cutoff
Alarm
Defective High Power
Temperature Control
Module
Replace High Power Temperature Control Module
T9B1
Blue Inline
Temp. Cutoff
Alarm
Loose connections
Tighten connections
A8A6
No Red
Blanket
Current
No current to the conditioning
zone
Alarm
Tripped circuit breaker
Visually check circuit breaker for a tripped condition
A8B5
No Blue
Blanket
Current
Alarm
A8A3
No Red Inline
Current
Alarm
A8B1
No Blue Inline
Current
Alarm
A8A2
No Red Hose
Current
Alarm
A8B4
No Blue Hose
Current
Alarm
Low power
Measure voltage across input terminals on power line
filter. Voltage should measure between 190 and 264
Vac
A8B7
No Red
Chiller
Current
Alarm
Cable unplugged/loose
power
Check for loose or disconnected wires or plugs
A8B8
No Blue
Chiller
Current
Alarm
Bad heater(s)
Measure resistance of heater(s)
A4A6
Red Blanket
Overcurrent
An over current was detected
on the output
Alarm
Bad heaters
Measure resistance of heater
A4B5
Blue Blanket
Overcurrent
Alarm
A4A3
Red Inline
Overcurrent
Alarm
A4B1
Blue Inline
Overcurrent
Alarm
A4A2
Red Hose
Overcurrent
Alarm
A4B4
Blue Hose
Overcurrent
Alarm
A4A7
Red Chiller
Overcurrent
Alarm
High voltage
Measure voltage across the disconnect switch.
Voltage should measure between 190 and 264 Vac.
A4B8
Blue Chiller
Overcurrent
Alarm
Shorted Temperature
Control Module
If temperature rises for a zone that has been disabled,
replace Temperature Control Module
Error
Code
Error Name
Error Description
Error
Type
Cause
Solution