Raypak Pool Heater Blocked Vent / Vent Temp Limit Error Code
Quick answer
The vent safety or vent-temperature limit is open.
Severity: high · DIY difficulty: intermediate
Safety
TBD - must be written per-code before publish
What Blocked Vent / Vent Temp Limit means
The vent safety or vent-temperature limit is open.
Code meaning varies by series
- X94 / SR-410 (Professional Series Digital): Blocked Vent: vent/field switch #1 is open. Vent Temp Limit: vent temp limit switch is open.
Causes, ranked
Causes not yet documented — verify against the service manual.
Parts & supplies for Raypak Pool Heater: filters, control boards, sensors, and common replacement parts.
Sources
- PoolDial error-code reference (manual-backed) — verified 2026-08-29
- Raypak Professional Series X94 Installation & Operation Manual (241494), Table N Error Condition Messages — verified 2026-08-29