What does Sr:02 mean?

This mode allows the water pump to operate independently of other system functions, useful for circulation checks.

• User has intentionally selected the water pump only operation mode.

Click steps to track your progress.

1. 1

   Press the SERVICE S/W for 5 seconds to enter Service mode (while in Standby Mode).

2. 2

   Select Sr:02 and press SET S/W to start the water pump only operation.

3. 3

   Press the OFF/ON button to stop the water pump only operation.

4. 4

   Note: Water pump will stop if H62 is triggered.