BoilerFaultCodes Flashing 8-times a second
SARA function active
Vokera Sabre 35HE Fault codes & diagnostics
9 fault codes with plain-English explanations, severity ratings, DIY guidance, and repair cost estimates.
Combi Natural Gas 35 kW 2019-present
GC Number 47-094-72
Download the Vokera Sabre 35HE manual
PDF
This boiler uses LED flash patterns
Count the flashes in one repeating group before the pause. That number is your fault code. Do not reset until you have noted it. How to read fault codes →
Severity at a glance
Each cell = one fault code. Hover to identify. 9 Unrated
Just want the most common Vokera Sabre 35HE faults?
The top 6 problems in plain English — with causes, DIY checks and repair costs.
Fault codes
All 9 documented codes
Tap any card for details
LED / flash-pattern codes
Digital codes
DHW NTC fault
ON at 50 °C / OFF at 55 °C
ON every 0.5-secs (Green LED)
Temporary fault, e.g.: APS fault, low water pressure
ON every 0.5-secs (Red LED)
Final fault, e.g.: water pressure switch, condense pressure switch, fan/flue problem, limit thermostat
ON every 0.5-secs (Yellow LED)
CO function active
ON every 6-secs
At stand-by with no faults
Solid (Green LED)
Active for heat/DHW request
Solid (Red LED)
primary NTC open/short circuit
Solid (Yellow LED)
DHW thermistor fault
Boiler cover options
Avoid the next call-out bill
Monthly cover means no unexpected bills when your boiler breaks down.
Approved partner
Get a quote →
Domestic Appliance Guard
Unlimited call-outs, 24/7 helpline, no price-hike promise
Affiliate links. We may earn a commission at no extra cost to you.