UPM THM301A Guia de Instalação descarregar pdf (Página 29)

TROUBLESHOOTING GUIDE

PROBLEM SOLUTION

Battery symbol ( ) is flashing.

Buzzer beeping.

Display will not come on.

Air-conditioning will not come on

(COOL symbol not flashing).

1) Check if the batteries are installed correctly.

2) Check if the batteries are fresh and the correct size.

3) Press the RESET button.

1) Batteries are low. Replace with fresh batteries.

1) System switch is on the HEAT or OFF position.

2) Current temperature is lower than set temperature. Check current program.

3) Air-conditioning has been turned off within 5 minutes, and automatic delay has been activated to

protect the compressor.

Air-conditioning will not come on

(COOL symbol flashing).

1) Check if the air-conditioning main switch is turned on;

it may have been turned off.

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UPM THM301A Guia de Instalação Página 29