Webasto Air Top HL32 D Workshop Manual
A workshop manual for all versions of the series HL24/32 Petrol and Diesel as as Air Top 24/32 Petrol and Diesel heaters.
A workshop manual for all versions of the series HL24/32 Petrol and Diesel as as Air Top 24/32 Petrol and Diesel heaters.
- TAGS
- webasto
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
http://sales.butlertechnik.com/webasto/webasto-air-heater-spare-parts/hl32<br />
4 Troubleshooting (Quick Diagnosis)<br />
Troubleshooting is facilitated by using the testing device (see sect. 7.2).<br />
Heater shuts down in its 'fault lock out' mode (applies only to HL 24/32 if equipped with el. control unit SG 1561)<br />
NO<br />
Switch on heater<br />
Is operation Indicator H1<br />
Illuminated?<br />
YES Is voltage okay<br />
(~ 10,5 V,wlth the engine<br />
switched off, measured at<br />
I<br />
I<br />
battery during glowing period)?<br />
I<br />
-<br />
Charge<br />
Check electric leads, operation indicator H1 and fuaea F1<br />
battery<br />
Is fuse F2 okay? Check electric leads for earth connection Check glow plug Replace fuse F2<br />
I<br />
I<br />
la fuse F1 okay? Check drive unit and electric leads toreanh connection and short circuit Replace fuse F1<br />
I<br />
Is glow plug operating Check electric leads and connections for I- Chack glow plug Check electrical<br />
property? nterruptlona control unit<br />
I<br />
Is metering pump cycling -i Stan-up ls Interrupted due to fault lock-out Chack flame detector and electric leads for earth<br />
(alter 30 sec. of preheating)<br />
connection and ahonclrcult<br />
properly?<br />
Stan-up continues, Checkaafety Chack Check Check<br />
- metering pump fella lo themloatatand aatety electn>nlc metering<br />
- - -<br />
,....._<br />
cycle electric leads switch control pump<br />
unit<br />
I<br />
Is drive unit operating?<br />
Check drive unit and electric leads<br />
I<br />
Is exhaust pipe gattlng hot Metering pump Empty tank Check fuel line for Check metarlng<br />
(=combustion In healer)? - - - falls lo supply fuel kinks and leaks -<br />
pump with dllmper<br />
Check exhaust pipe and combustion air lines<br />
- for unabstructedpaaaage<br />
I<br />
Does glow plugahul off within Chackflamedelector(-sact.6.1.7)<br />
thaaafetytlme(90aec.)? - and electric leads<br />
I<br />
H Checkdellveryraleofmelerlngpump<br />
Check fuel system Integration<br />
(suction height, underpreuure In tank).<br />
Observa lnatallatlon lnatructlona.<br />
Does heater •hut down In It•<br />
fault lock-out mode alter ehort<br />
heatlngopentlon(flame<br />
fellure)?<br />
H Check co, value and adjust, replace drive unit, 11 necnury<br />
H Checkpert·loadlftllltor<br />
10<br />
Drive unit shutadown<br />
Metering pumpcontlnuea to cycle<br />
Part-load realator not In·<br />
- Drive resumes operation end heeler atana up again -<br />
stalled or not connected<br />
Heater shuts down again<br />
www.butlertechnik.com
Change language