MTD ERV 350, ERV 365 manual Reset unit, E A1, E A2, Instructions for the Installer

Caution!

Avoid contact with the PCB and frost protection element due to risk of electrocution

4

E3

Extractor hood temperature sensor too high.

Yes

Turn hob off and remove item from heat source

Yes

Replace PCB

Caution:

Reset unit!

Is something
	No
cooking on the hob?

Resistance OK? No

Replace temperature sensor

Caution!

Avoid contact with the PCB and frost protection element due to risk of electrocution

E4

MTD-ERV 350 switched off via external switch

Caution!

Avoid contact with the PCB and frost protection element due to risk of electrocution

Yes

Cause depends on unit connected to the MTD-ERV 350: check the connected unit.

E A1

Moisture sensor registers >60% relative humidity in exhaust air.

Consult the user;

fit standard heat exchanger??

E A2

Cannot read out moisture

sensor

Connection

between sensor and PCB OK?

No

Check sensor resistance

Yes

Replace PCB

Caution:

Reset unit!

Repair connection

Resistance No

OK?

Replace temperature sensor

Instructions for the Installer 39