HONEYWELL SUNDIAL RF PACK 3 CLOCK PROBLEM

[fixitman]

Hello. Have a recently installed Sundial RF Pack 3. Clock reverts periodically (4 times in last month) to default (2010) - seems to be random fault. This is third new controller - exactly same problem. System otherwise OK. Has anyone got same problem ?

 

[TRTesting]

Hi, I have the same problem which is getting more and more frequent. Also the room stat, most times, resets to default. I wrote to Honeywell and they said it likely to be as a result of mains spike and advised me to have the electricity supply checked. The last event was last night at 1 am and so the only thing that switches on and off then is the fridge or outside light, and they do that on a regular basis at other times with no effect.
Sorry this doesn't solve the problem it but it seems is a common issue. Hopefully it will provoke more comment.

 

[fixitman]

To TRTesting. 5 weeks ago our contractor fitted the fourth controller and this time the clock problem seems to have gone away. This controller was obtained direct from Honeywell and has a recent manufacture date. We understand that there have been problems with back up batteries of units produced a while ago. We have not had problems with the thermostats (both are wireless) but the makers instructions are a bit confusing - when trying to adjust the room thermostat temperature setting it is possible to unintentionally fire up the boiler !

 

[TRTesting]

Hi Fixitman, Thanks for your post which prompted me to change the battery in the programmer as I had nothing to lose. It was a standard CR2032 "button" cell. Since then, over a week ago, there have been zero incidents of the programmer "blipping" back to factory default, when before it doing it several times a day. I have written to Honeywell to see if there is a known issue and whether the battery should be changed on a regular basis, awaiting a reply. If this wasn't the problem, it is a huge co-incidence!!!!. I'll repost if it gives me any more trouble

 

[fixitman]

Hello. Me again. The new SUNDIAL RF2 Pack3 controller installed in November 2015 (see above) has just failed again, only two weeks after the heating was switched on for the winter - the clock reverted by itself to the default date/time so the system is, again, almost impossible to use. Anyone else having problems with the Sundial system ?

TRTesting - did you get any response in Mar 2016 from Honeywell about the back-up battery ?

 

[jeff the gasman]

Honeywell guarantees are printed on toilet paper and should be used as such.