Name: Friedrich FPHMR24A3A
Brand: Friedrich
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74 PB

TROUBLESHOOTING

Test the jumper terminals

Note:

When the whole machine is powered up, if the external unit does not work, to rule out the communications failures, adopt

screening method such as short circuit on the jumper terminals to see if the external unit can be started normally or similar

method.

There are two blue terminals on the outdoor control panel, as shown above.

Application: Short out the terminals, and power up the outdoor unit, then the outdoor unit may run independently. It can be

determined that there is no internal and external communication faults

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