I have an Espar D2 Heater with HAK that has been running flawlessly since it was installed over 18 months ago. A few days ago went to turn it on and the red light on the Easy Start came on like normal but just shut off again before the blower started. There are no error messages in the Heater or Control Unit Settings menu. Any ideas on what might be going on and how to troubleshoot would be appreciated.
Espar D2 Heater Issues
- Thread starter Votron
- Start date
elemental
Wherever you go, there you are.
I think the most likely reason (in my experience) for red light/no start just before blower is low supply voltage assuming heater has otherwise been running flawlessly. It may have enough to switch to "enabled" and start to start, but when it draws higher current to fire up, the voltage drops below the cutoff limit. It stops the startup process and lights up the red trouble light.
Use a multimeter to check the supply voltage, the closer to the main heater unit the better. Monitor changes while the heater tries to start. Compare with low voltage cutoff limit for heater. If voltage seems low, take action to increase voltage to nominal level (i.e., charge battery). When at nominal level, try starting heater again.
There's a mass of information on heaters, faults, servicing. etc. here:
https://www.letonkinoisvarnish.co.uk/eberspacher_intro_1.html
https://www.letonkinoisvarnish.co.uk/eberspacher_intro_1.html
Hello
I am having trouble starting my heater. I have the easy start and am getting an H1 Service code error. Checked the voltage to the heater and it is at around 14. No voltage to the pump, and obviously the controller works. Not sure on next steps or what to check next?? Both 20 amp fuse and 5 amp fuse have 14 volts going to them. Pump won’t work and heater won’t engage? Thanks for any advice or next steps. Much appreciated!
I am having trouble starting my heater. I have the easy start and am getting an H1 Service code error. Checked the voltage to the heater and it is at around 14. No voltage to the pump, and obviously the controller works. Not sure on next steps or what to check next?? Both 20 amp fuse and 5 amp fuse have 14 volts going to them. Pump won’t work and heater won’t engage? Thanks for any advice or next steps. Much appreciated!
OrioN
2008 2500 170" EXT
The pump works by receiving pulses of current. In other words, you will not get a static voltage reading.
OrioN
2008 2500 170" EXT
H1 = Heater no. 1.
What is the following code? This will tell you where to look first....
OrioN
2008 2500 170" EXT
Do you have the Easy Start Pro?
Eberspacher Easy Start Pro Operating Instruction Manual (butlertechnik.com)
OrioN
2008 2500 170" EXT
Read your/the above manual, it shows you how to get the 'secondary' and detailed codes....