Diplomat APM6855/1 E- Fault code

[SAMURI]

Has any one had this problem before.
On this fridge freezer you cannot set the freezer temp or set the fast freeze and it diplays E-
The fridge temp is ok and you can set this.
The no frost probe and the freezer ambiant probe are ok and the appliance is working as normal and also auto defrosting ok.
I have had the E- fault on other APM6855/1 before and it has always been the ambiant probe faulty.
When you get the H display it has always been the no frost probe.
The only other cause I can think of is the main pcb
I am going back on Tuesday and I carry all the spares for this model but wondered if any one has had the same problem to save me time on the visit if not I will try a new main or display pcb first as the probes are o.k.
The alarm is not sounding as the temperatures are ok.

Thank you

Bob

[expertcat]

Re: Diplomat APM6855/1 E- Fault code

The fault code E- is either the defrost sensor or the air sensor in freezer…one is E- and the other is -E..H is just telling you the fridge temp is over 10 degrees

[SAMURI]

Re: Diplomat APM6855/1 E- Fault code

Hi expertcat

Thank you for the reply

I replaced both sensors on the visit and the E- remained displayed.

As I said in my post normaly I have found H means the freezer is out of temperature range and is normaly frosted up and the no frost evaporator probe is faulty.
E- is normaly the freezer ambiant probe.
The freezer has been allowed to cooldown ok and is running normaly and the temperature in the freezer is -20 as it was set before the fault.
This is a strange one and must be a wiring fault behind the terminal block in the freezer or possible main module as I cannot set the super freeze or freezer temperature.
I will have to spend a bit more time on it Tuesday to sort it as normaly this model is easy to sort out the problems.
I used to work for Expert and think you must have as well and used to repair for MFI until they went bust.
When I find out the problem I will let you know incase you come across one like this where replacing the sensors does not cure the fault

Thanks again

Bob

[geoff1]

Re: Diplomat APM6855/1 E- Fault code

Hi

I too have a schrieber apm6855 20044416632 which has -E- in the display. fridge section seems to be ok and get get fast freeze light to come on. compressor only seems to run for short periods and the freezer temp is about 2 degrees on display. Very little frost on evaporator,

Could this be the probes? could you also help with part numbers

Many thanks
Geoff

[SAMURI]

Re: Diplomat APM6855/1 E- Fault code

Hi Geoff

The part numbers depend on what version the APM6855 is as there was version 1 and version 2.

1 is marked APM6855 and normaly displays H if there is a fault this just stands for Hot out side of temerature range settings.

2 is marked APM6855/1 and displays -e or e- and means the same as H on version 1 and is normaly the sensors at fault.

The fault you discribe may be a few things it could be a compressor fault a module fault or sensors as you say the compressor only runs for a short time.

The part numbers for the sensors version 2 with sensors that plug in, in the freezer compartment are

Ambiant probe 502055700
No frost probe 502055800

Version 1 sensors plug in to a pcb on the back of the APM6855 and have different part number.

I hope this helps

I will post the results of my visit on Tuesday when I have the chance to find out the fault on the APM6855/1 as it is not the normal sensor or fan fault on this appliance.

Bob

[SAMURI]

Re: Diplomat APM6855/1 E- Fault code

Hi Geoff

I went back to this call today this was not the normal sensor fault.
The fridge freezer was working o.k. and the temperature was ok on the visit but still showing E- fault.
I was checking it when the compressor cut out but the freezer fan kept running.
It sounds like it may be the same fault you are having and I traced it to a faulty PCB/Main module.
I fitted a new module and it is now working fine.
I hope this helps somebody if it is not the normal sensor fault as I have repaired hundreds of this model but this was the first time I have had any other fault except sensors or fan motors or door sensors.
I did have 1 a long time ago with a display module fault but this was easy to spot.

Bob

[geoff1]

Re: Diplomat APM6855/1 E- Fault code

Hi Bob

Bingo – module gone on mine as well caused by lightning/power surge.It looks like it has been corrupted.

They had problems with power/lightning about 4 weeks ago on this island and this is when the problem started so I find out afterwards. Being a holiday let this was the only item left switched on and got damaged.

Thanks for coming back

Geoff

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