Dometic Heki4 Plus
Official technical documentation and workshop diagnostics for Heki4 Plus.
Technical Specifications
Electrical12 V DC operating voltage, drive rated power 21 W, lighting 2 x 8 W (non-dimmable), 10 A flat blade fuse in the power supply line.
Gas Or PressureNot applicable (No gas systems associated with this appliance).
Capacities DimensionsCompatible roof thicknesses: 25 – 60 mm (standard frame 25 – 32 mm, optional sets required for 33 – 60 mm). Maximum permitted vehicle speed: 100 km/h standard, up to 130 km/h with optional spoilers. Glass dome opening angle: approx. 70°.
Master Troubleshooting & Diagnostics Matrix
| Error Code / Indicator | Symptom / Meaning | Step-by-Step DIY Fix | Suggested Actions |
|---|---|---|---|
N/A | The roof light does not open or close. Possible Cause: The batteries in the remote control are running low, vehicle power supply is interrupted, fuse is faulty, or remote control coding is faulty. | Replace remote control batteries, check vehicle power supply, replace 10 A flat blade fuse, or re-teach remote control by cutting and restoring power, then pressing '<' and '>' simultaneously while the red lamp flashes for approx. 30 seconds. | DIY Safe |
N/A | The control lamp lights up once the roof light is closed. Possible Cause: The roof light is not locked in the runner wedges properly due to obstructions (twigs, leaves) or the lock is out of place. | Remove any objects stuck between glass and frame, or adjust the lock by loosening four screws, repositioning guide rail (1) so the lock runs in it, and re-tightening the screws. | DIY Safe |
N/A | The flyscreen or blackout roller blind cannot be moved. Possible Cause: Dirt accumulation on the side guides. | Clean the side guides thoroughly. | DIY Safe |
N/A | The lighting does not work. Possible Cause: Low remote control batteries, interrupted vehicle power supply, blown fuse, or one/both lamps are faulty. | Replace remote control batteries (Type AAA), check vehicle 12V supply, replace 10 A fuse, or replace faulty lamps (12 V, 8 W). | DIY Safe |
N/A | The rain sensor does not respond. Possible Cause: The rain sensor is heavily soiled. | Switch off power supply and clean rain sensor with a dry cloth. | DIY Safe |