How do I change a Miele heater pressure swith

The F14 Fault is a heater pressure switch fault - usually a machine that that been in service for a while gets soap build up in and around the sensors - the heater pressure switch being one of those. Its purpose is to measure the pressure of the recirc pump to make sure there is sufficient water pressure to turn the heater on - without sufficient water pressure the heater would burn up. The pressure switch gets gummed up with soap deposits over time and should be changed out

The Miele G5300sc Error F51 usually relates to the Heater Pressure Switch.

Remedy:
Replace the heater relay or heater pressure switch.

David: Try downloading this free user manual: http://laundry.manualsonline.com/manuals/mfg/miele/pw_6065.htmlk According to ApplianceHelponline.: " Heater pressure switch The program is interrupted and the drain pump is operated. The display shows Technical fault F51. Call Service Department. The buzzer is activated for 2 minutes.

Background information:

Start position: One second after the program start, heater relay K1/1 is activated. This enables a check as to whether the contacts on heater pressure switch B1/13 have closed on switching steps 21/22 or 11/12.

Cause:
Heater relay defective; contact open.

Remedy:
Replace the heater relay.

Cause:
Heater relay solenoid defective.

Remedy:
Replace the heater relay.

Cause:
Connection from heater relay to electronic module open-circuited.

Remedy:

1. Check plug connections.

2. Check the connection wires for continuity.

Cause:
Heater pressure switch open- or short-circuited.

Remedy:
Replace the heater pressure switch.

Cause:
Connection from heater pressure switch to electronic open-circuited.

Remedy:

1. Check plug connections.

2. Check the connection wires for continuity.

Cause:
Foreign objects in heater pressure switch.

Remedy:
Replace the heater pressure switch."

check pressure in pressure tank. should be same as water pressure. low pressure in pressure tank will cause issues.

replace the syphon loop ( copper waterline) with new flare nuts

The R100 is a kerosene heater and the RLP100 is a propane heater so I am not sure when one you have.
If it is kerosene then you may need to check the pump pressure. Also the Safety swith can give you a cut out after 30 seconds.

If the unit is Propane then you could have a bad control board or a flame sensor.

You can call our service department at 1-800-475-5660

Thanks

Hi dear.Please follow this if you can do it,other wise call service department.I hope that solves your problem.Thanks. F14
Water intake fault: Heater pressure switch
Cause:
Heater pressure switch B1/13 defective.
Remedy:
1. Check the heater pressure switch.
2. Check the connection plug and wiring harness.
3. Replace the heater pressure switch, if necessary.
Cause:
Circulation pump inoperative. Circulation pressure too low (no pressure at
heater pressure switch). Pump may be blocked by foreign objects.
Remedy:
1. Check the circulation pump for foreign objects.
2. Check the circulation pump capacitor.

controls the combustion fan , change pressure switch should fix it

Miele have cold inlet only. Either element is open circuit, or the relay that switches the element has failed. My money would be on the element first, then the relay. The machine will sit in that mode forever as it is waiting for the temperature of the water to reach a certain temp before telling the electronic unit to move to the next part of the wash. If you need assistance in how to test & how to get to these parts just let me know. But you will need an ohm meter to test the element. Regards