Welcome to the forum. Although you can post in any forum, the USA forum is here in case of local regs or laws

Danfoss FP975 Erratic behaviour

View the thread, titled "Danfoss FP975 Erratic behaviour" which is posted in UK Plumbers Forums on UK Plumbers Forums.

D

de56723

Folks,

Danfoss FP975 heating clock is acting very strange.
It will not turn on the waterand central when activated manually. The red light comes on for a few seconds
and then it turns off and shows error code of N33 whatever that means on screen.

If i decide to programme it in via the clock, it comes on at the correct time but this time it continually tries
to activate the cycle by turning on the light the turning itself off throwing the code and trying again and repeating this process continually.

Bt then even stranger if i approach the clock an hour later it works fine !!

What could be wrong here and what is code N33 ?


I think this clock is a load of CRAP - as when the power goes off the flippin programmes are all lost too !!

Any help most appreciated before i attack it with a sledge LOL.
 
get a new programmer there are many good ones out there, honeywell are the best but also expensive. drayton and danfoss also good. screw fix have a good selection.
 

Official Sponsors of Plumbers Talk

Reply to the thread, titled "Danfoss FP975 Erratic behaviour" which is posted in UK Plumbers Forums on Plumbers Forums.

We recommend City Plumbing Supplies, BES, and Plumbing Superstore for all plumbing supplies.

Thread statistics

Created
de56723,
Last reply from
PlumbBobBob,
Replies
1
Views
9,316
Back
Top