Quote:
Originally Posted by Forestgreen
... there is no difference in volume between the low speed and the high speed ...
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David; the low speed on a resistor system can be extremely loud. The T4 test should be absolutely reliable, unless of course some bodgery has taken place in the control box.
Regarding your coolant problem, I would drain the system completely yourself then refill according to the MGR procedure
here. You need only minimal tools to do this and you will then
know that it's been done properly.
Simon