How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.
Ask Andrew Smith Your Own Question
Andrew Smith
Andrew Smith, Home Appliance Technician
Category: Appliance
Satisfied Customers: 3629
Experience:  Gas cooker specialist
46681511
Type Your Appliance Question Here...
Andrew Smith is online now

My boiler is fitted with an old SUNVIC thermostat 3AB4600 which

Resolved Question:

My boiler is fitted with an old SUNVIC thermostat 3AB4600 which has failed. Sunvic told me to contact DANFOSS who may have a replacement. They gave me a phone no XXXXXXXXXX which is in some way wrong. Can you tell me the right number or who to contact to find the right replacement?

I shall be most grateful

Dirck Gunning
Submitted: 3 years ago.
Category: Appliance
Expert:  Andrew Smith replied 3 years ago.

***** ***** :

Do you have the full model details - and preferably the GC no. of the boiler so I can do some digging tor you?

Customer:

The boiler is a Concord C170 Series 3a. Gas group NG. Burner type Furigas.

Customer:

Injector Dia m.n. 3.6 Manifold MB 13.5 Pressure ins w.g. 5.4

Customer:

Heat output kwatts 48.4 (165,150)

Customer:

Heat Input kwatts 604 (1206,100)

***** ***** :

Is there a GC no. in the form of XX-XXX-XX

***** ***** :

This will uniquely identify the appliance

Customer:

Design Press bar 4.1 Test Press bar 8.2

Customer:

Serial no DH10608010

Customer:

This is all Greek to me, I hope you can make something of it!

***** ***** :

http://idealparts.com/parts-list/concord_c170_series_3a/E3

***** ***** :

Try your local Parts Center - the Nottingham one is 01159425650

Customer:

A friend has suggested it might be possible to replace the thermostat AND the "pocket" it fits into. I have to go shopping so I will be out for a couple of hours, although your researches will take some time, I am aware. Incidentally my phone no is(###) ###-####1146

***** ***** :

It will be an illegal modification as they do not make the parts any more, this is a combined thermostat and overheat thermostat that sit in the same pocket.

***** ***** :

Very much similar to the commercial Potterton boilers currently use

***** ***** :

You might want to try that route first

***** ***** :

Ideal, Potterton and Baxi are all the same group now

Customer:

So are you saying that Danfoss do not have a replacement thermostat?

***** ***** :

You will not be able to ask Danfoss as they make thermostats and the boiler manufacturers decide which ones go into which boilers

***** ***** :

The first call could be Potterton commercial and see what they currently have available that could fit

***** ***** :

You are looking for a combined thermostat/overheat thermostat with a single pocket

Customer:

Many thanks for your help. I will ring Potterton

***** ***** :

No problem

Customer:

Dear *****,

Customer:

I rated your service as "good" -the top one below excellent. I have now run into a problem: (1) I rang Ideal Boilers. I was not allowed to talk to their professionals, as I am not a professional. The helpline told me that they do not advise or recommend thermostats; they simply make the boilers and it is for the boiler engineer to decide what thermostat to attach. (2)Sunvic told me that Danfoss would probably have a twinstat to replace the Sunvic2AB4600. (3)My servicing engineers say the Sunvic stat no longer works and they cannot find a substitute (They would prefer me to spend £5000 on a new boiler) (4) So I have now enquired from Danfoss in Denmark if they make a replacement stat. So, as you can see, I am in a cleft stick; the thermostst maker says " check with the boiler maker", the boiler maker says "ask your servicer" and the servicer says he can't find a replacement, but hasn't, I suspect, looked too far! So it is left to me to try to find a way of saving £5000! I hope this makes sense

Andrew Smith and other Appliance Specialists are ready to help you

Related Appliance Questions