Climate Technology 43355 - TROUBLESHOOTING - Advanced Issues; Erratic Display and Unit Operation; Persistent Error Readings

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Problem (cont.) Solution (cont.)
Erratic Display
If unit continues to operate in
the Off position
Thermostat permanently reads
“HI,” “LO,” or “ERR-” after
pressing reset button
1. Press the RESET button once with a small pin and hold for two
seconds. The thermostat will need to be re-programmed.
1. Replace unit.
1. Replace unit.
If you experience any other problems, call 800-676-7861 from 8 AM to 5 PM Central Time for technical assistance.