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Old 08-16-2000, 10:14 AM
Posts: n/a
Could be as simple as a small valve that fails, forget the name. More complicated problem could be an electrical control problem which could run several hundred problems.

I get good heat when fan is in LO mode, but no heat when in HI mode.

'89 420 SEL
'90 300 SEL
'84 300 SD (sold it)
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