HTP Elite Ultra 6 19 — Power Limiting Mode
6 19
Power Limiting Mode. Normal operation on new start up - allow the boiler to operate the burner in heating or hot water mode for 5 minutes without interruption; the boiler will return to normal operation on its own. The table classifies it as Clears after the issue is corrected.
Applies to
This domestic hot water fault code is displayed by the ELU control (group fault codes) on ELU models (ELU-85WBN through ELU-199WCN), as documented in Elite Ultra (ELU) Installation Manual (Table 32 fault codes), 420010970305 / LP-700 (1.24.23) — 150/199 sizes in 420011303900 (420010970305 (LP-700)). Codes can differ between controller generations, so always check the manual that matches your unit.
- HTP Elite Ultra (ELU)
- HTP ELU-85WBN
- HTP ELU-120WBN
- HTP ELU-120WCN
- HTP ELU-150WBN
- HTP ELU-150WCN
- HTP ELU-199WBN
- HTP ELU-199WCN
Controller: ELU control (group fault codes). Source manual: 420010970305 (LP-700) (2023-01).
Why a code is not a diagnosis
A DHW code involves the hot-water side: sensors, flow, the mixing/bypass valve or the DHW heat exchanger. It does not say whether the fix is a sensor, a valve or a flush.
Safe things to observe
- Note the code and whether the problem follows a hot-water draw or appears at all times.
Do not
- Do not open the appliance to test DHW components yourself.
How professional service helps
- A technician tests the DHW sensors, flow switch and valve circuits, and cleans the DHW path where the manual directs.
- Combustion and safety devices are verified with an analyser and the manufacturer's procedure after any repair.
Where ROMA provides on-site service
On-site service is currently offered in Greater Vancouver, BC, including Vancouver, Burnaby, Richmond, Surrey, Coquitlam, North Vancouver, West Vancouver, New Westminster, Port Coquitlam, Port Moody, Delta, Langley, Maple Ridge, Abbotsford, Chilliwack, White Rock, Pitt Meadows, Tsawwassen, Anmore, Lions Bay, Belcarra, Bowen Island, Mission. Everything else on this site is reference information you can use anywhere in Canada.
Parts and service
Parts commonly involved
These parts appear in the documented text for this alert. A code reports a condition, not a failed part — a technician confirms the cause by testing before anything is replaced.
Burner assembly
The burner assembly is where gas and air meet and burn inside a boiler, and its condition decides whether combustion is clean or makes carbon…
What a technician checks →
Service for this alert
- Gas Boiler Repair
Licensed gas technicians from ROMA Heating & Cooling diagnose and repair residential and light-commercial gas boilers across…
Every boiler part explained — what it does, how it fails and what a technician checks.
Documented for HTP Elite Ultra (ELU).
Frequently asked questions
Can I clear this code myself?
Clearing a code without fixing its cause usually just brings it back. Note the code, check the safe items on this page, then call a licensed technician. If your appliance manual describes a user reset for this exact code and it stays away, no call may be needed.
Boiler locked out? Call with the alert text ready.
The brand, model and this alert are passed along when you request service online, so the technician arrives prepared.
On-site service in Greater Vancouver, BC. ROMA lists “Open 7 days” on its site; call to confirm same-day availability.
Sources and verification
- Elite Ultra (ELU) Installation Manual (Table 32 fault codes), 420010970305 / LP-700 (1.24.23) — 150/199 sizes in 420011303900 · 420010970305 (LP-700) · accessed September 9, 2026
Facts checked September 9, 2026. Last updated September 9, 2026. Technical reviewer: not yet assigned.