[Rongripon]

i had a similar problem twice, one was the coolant level was low andante sensor wasn't letting it run. the other was what was mentioned earlier about the fire extinguisher safety switch wasn't working and that was because the air circulation fan froze up allowing the genes compartment to get hot enough to brake the extinguisher activator   filled the coolant reservoir to fix one problem and replaced the record fan and extinguisher to fix the other.