Honeywelly9420 sundial rf pack 2

[Keith whiddett]

I have just installed the above heating system controller on a Y plan all seems to work ok but the programmer is saying no signal and rf icon is flashing. The thermostat is coming in and out on tempeture, programmes are ok but this “no signal” is bothering me any ideas please
Thermostat is a DT92e

 

[Leesparkykent]

Have you done a signal test? You are looking for a signal of 3 or above.

 

[Keith whiddett]

No I am not a pro, but have but the thermostat next to the programmer making no difference.

 

[buzzlightyear]

there you go a better version .

 

[Keith whiddett]

If that’s the honey well diagram that is what was used to wire it up. Will check it but thinks it’s ok

 

[Leesparkykent]

No I am not a pro, but have but the thermostat next to the programmer making no difference.

on the thermostat hold the on off button for 2 seconds until it locks, press the up and down keys together until inst appears, press down and cont should be displayed, hold the down button for 3seconds to enter test mode, hold down button down again for 3 seconds until SS is displayed. The signal should be displayed. The range is 0-5, 3 is recommended but anything 2 and above when programmer and thermostat are within 1 meter of each other is satisfactory. The signal strength will flick between o and the signal strength number every few seconds. I would unbind and rebind the thermostat to the receiver/programmer and check the signal strength again. If it still isn't 2 or above then either the thermostat or programmer/receiver is faulty and will need returning/replacing.

 

[Leesparkykent]

If that’s the honey well diagram that is what was used to wire it up. Will check it but thinks it’s ok

It's not the wiring if all the switching is working correctly.

 

[buzzlightyear]

http://www.directheatingsupplies.co.uk/pdfs/Honeywell Sundial RF2 Pack 2 Installation.pdf

 

[buzzlightyear]

you cant not go wrong if you have a wiring plan.

 

[Keith whiddett]

Have checked rf and it saying 5 but programmer still saying no signal. I did a reset but still the same. The tap icon on hot water is flashing and if I try to get extra hour on hot water or override on hot water it’s saying invalid any ideas
Also heating is coming on when not require. Heating working but 24/7!!

 

[buzzlightyear]

possible its been wired up wrong !

 

[buzzlightyear]

did you work from the heating plan from post # 8, and the manufacture instructions and is the batteries in the wright order?

 

[Keith whiddett]

New batteries, have not change wiring yet, i switched of power to programmer and rebooted it and presto it worked fine for a while2/3 hours but then reverted back to no signal with the thermostat only 2 mtrs away! Have rebooted again and changed programmes so hot water is a different time to heating but not convinced it’s right yet. Next is to look at wiring but can not understand why it works for a while then plays up

 

[Leesparkykent]

New batteries, have not change wiring yet, i switched of power to programmer and rebooted it and presto it worked fine for a while2/3 hours but then reverted back to no signal with the thermostat only 2 mtrs away! Have rebooted again and changed programmes so hot water is a different time to heating but not convinced it’s right yet. Next is to look at wiring but can not understand why it works for a while then plays up

Have you unbound the thermostat a rebined it?

 

[buzzlightyear]

the Honeywell systems are the best .but say might be a fault on the programmer but I don't think so.