ecotec

Just wondered if anybody could help me with this one....... or advise... Called out to an ecotec 831. fault code F61. The gas valve had been changed by a third party a week before... I checked the ignition electrodes and they were caked in sh*t. Cleaned and fired back up. Advised...

Hi all, I think has been discussed before but I don't think I've seen a clear answer. We have the Vaillant boiler as above and the filling loop has started to leak from around the olive joint on the cold water side. I would like to replace the whole loop, flexi, taps and the valves etc. I can...

Can Someone tell me how to wire the Vaillant ecotec OV430 with the Y Plan system. Does the orange from terminal 8 junction box go to the RT terminal on the boiler (room thermostat)

Hi, A newbie here but need expert advice, I have installers who have started fitting the boiler (Vaillant ecoTEC plus 637) replacing an old water tank loft system and cylinder in the cupboard I'm also installing a horizontal megaflo (tempest) Okay, so they purchased the Valliant vsmart kit...

Had system drained and replaced 3 rads. Just wanted to know is any inhibitor ok or does vaillant have a recommended brand?

I have a Vaillant Ecotec plus 637 boiler. The pressure is very high and pegged to the right - water is dripping out of the outside overflow through the Pressure Release Valve. An engineer has replaced the expansion vessel and checked the filling loop. The pressure gauge is still pegged. (Note...

I've seen some replacement cartridges for Vaillant Ecotec diverter valves, just the innards. Aftermarket stuff, not official, and I know you're supposed to use official parts and all that, but the diveter valves on Vaillants are probably the weakest part i'd say. Has anyone used them and had...

Hi anyone. I have the F28 code on this unit. Gas IN is fine and on start up fires but within a second or two, the gas valve shuts. Taken the valve apart and the diaphram is ok,no splits. S code runs thru 1, 2 & 3 but will not progress to 4( burner ignited). Checked the low voltage solenoid and...

Could anyone please provide an idiots guide how to change the D0 setting on my boiler. When I open the panel I'm faced with four buttons Bottom two + and - top two - -. That would be a great starting point. My D0 setting is apparently D00 (auto) and to cut a long story short, my boiler has...

Just serviced a Vaillant Ecotec Plus 824 and after putting all back together and filling up got some issues. The burner keeps modulating between high and low ever few seconds when running hot water. I checked the inlet pressure and all is within parameters per MI. Heating came on for few...

Hi, as title says the actuator motor keeps cycling and sounds like the gears slipping. The pump is running freely and the diverter valve is running free. I have seperated the motor from the diverter valve and extended the motor piston. On powering up the boiler the piston retracts but then goes...

HI, basically I have had the boiler for 5 years and its never been serviced but never had any problems and the rads water is very clean, when we first got the boiler the hot water temp was set at 55oc and the the shower and tap water was scorching hot but gradually the temp of water has got...

Have noticed over the last view days the process has slowed considerably. Normally, the boiler fires up soon after the room stat clicks in and it gets up to desired temp within a few minutes. Have noticed the boiler is much quieter when it does ignite (approx 10 mins after being switched on) and...

Vaillant ecotec went off this evening, just noticed, no response, not turning on and no error code. tried replacing fuse in plug, turns on for less than a minute then dead again. have repeated with new fuse and does the same. Any ideas?? Plumber says maybe pcb, he can check in the morning...

Hi Guys, Needed bit of help on a Vaillant Ecotec 832 which has a pressure issue. The boiler pressure is rising when the CH was running. I have checked the expansion vessle static and charge is showing 1bar on my pump, which I believe means the vessle is good or best to still recharge again...

Hi guys, any ideas on my pressure problem? Friends boiler keeps loosing pressure, went out today to check the usual suspects (expansion,prv,system leaks, heat exchanger) but didn't find any issues. stopped for a chat for about an hour and checked system pressure when boiler was up to temp - all...

Apologies at start for long post but trying to give as much info as possible, Home - detached bungalow build 1989, cavity wall insulation, loft had extra in 2008, doubled glazed, 2 bedroom, 1 bathroom. Size is Width 35 feet, length 32 feet, room height 8ft. 7 Radiators installed 1995 plus 1...

Hi all, Looking for some advice on a new Valiant Ecotec Plus 615 boiler, fitted a few weeks ago. It makes an on/off vibration shown in the video link below, and is loud enough for me to hear easily in the living room (I live in a 2 bedroom apartment and my boiler is in the bedroom). Our old...

I have mounted a VR66 wiring centre in dual zone (switch in position 0) with two VRT350 thermostats. The heater is an Vaillant Ecotec Plus with combiboiler from october 2020. And I must say it works very well when one or both thermostats ask for heat. When there is no demand for heat the boiler...

Evening all, My EcoTec 831 has begun to make a strange noise, the plumber suggested bearings in the fan but it's intermittent and goes when rebooting. Can go a good week without it happening and HW and CH working fine. Any Ideas? Thanks in advance. Video is attached. Arron