Peerless Error E31: Low Water
Blocking (auto-reset) error — the water level is too low (low-water cutoff contact open). The control blocks the burner until adequate water level is confirmed. We diagnose and repair it across Greater Vancouver — same-day and after-hours.
Blocking (auto-reset) error — the water level is too low (low-water cutoff contact open). The control blocks the burner until adequate water level is confirmed.
Peerless fault codes can vary by model and series. Use this as a guide — the same code can have more than one cause. Our Technical Safety BC–licensed technicians read the code, confirm it against your unit's manual, and diagnose the true cause before any repair.
Likely causes of Peerless error E31
- Low system water level / loss of system pressure
- Tripped or faulty low-water cutoff (LWCO)
- Missing jumper between terminals #9 and #10 when no LWCO is used
- Damaged LWCO wiring harness
- System leak causing pressure loss
What you can safely check
- Check the boiler pressure gauge — low pressure suggests water needs to be added
- Look for visible leaks around the boiler and piping
Beyond these checks, do not open the unit or touch gas/electrical parts — BC law requires a licensed gas fitter. Call us for a proper diagnosis.
Parts Are Professionally Installed — Not Sold for DIY
For your safety and to keep your manufacturer warranty valid, BoilerPart.ca does not sell loose boiler parts over the counter or for self-installation. Under BC regulations, gas appliance components must be installed by a licensed gas fitter. Every part we source is genuine OEM and is professionally fitted, tested, and certified by our Technical Safety BC–licensed technicians as part of a complete repair or installation.
Parts often behind Peerless error E31
Genuine Peerless parts we supply and professionally install — never for DIY.
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Every repair and installation is backed by our written workmanship guarantee. If a part we installed fails because of our work, we make it right.
Genuine OEM Parts
We fit only manufacturer-original (OEM) components so your boiler performs to spec and keeps its factory warranty intact.
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As an authorised service provider for the brands we work on, our installs preserve and register your manufacturer parts warranty.
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All work is completed by Technical Safety BC–licensed gas fitters (Licence LGA0043870, Boiler Permit LBP0046450). We are fully licensed, bonded and insured for your protection.
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Peerless Error E31 Repair Across Metro Vancouver
Frequently Asked Questions
Fix Peerless Error E31 Today
Licensed Peerless diagnosis and repair with genuine parts — same-day and after-hours across Greater Vancouver.
A Division of CanroHeat.ca · Licensed Gas Fitters · Serving Greater Vancouver since 1985