Sun-Mar MOBILE - Mechanical Troubleshooting; Urine Odor in Washroom; Occasional Urine Odor Outside; Sewage Odor When Drum Turns

MECHANICAL TROUBLE SHOOTING
- 15 –
Symptom
Cause
Remedial Action
Prevention
Urine
Odour in
Washroom
Occasional
Urine Odor
Outside
Strong
Sewage
Odor
Fan Noisy
Horizontal runs or
downward slopes
on vent pipe
Fan has failed
Downdraft
Competing
appliances
Incorrect installation
of
filter box (MOBILE)
Too much carbon
or zeolite in filter
box (MOBILE)
1. Vent stack not
installed above
peak of roof.
2. If vent stack is
installed above
roof line, natural
obstructions, such
as tall trees, being
located in a valley
or close to a hill
may be causing
downdraft.
Compost is
anaerobic
Fan damaged in
shipping or
bearings are
beginning to wear.
Re-install the vent so there are no hor-
izontal or low points where condensation
can collect.
Have your serial number ready and call
SUN-MAR for a replacement. Instructions
are included with the replacement fan.
If you believe that there may be a down-
draft outside of the building, it may be a
good idea to remove your fan assembly
prior to installation and set the fan gate to
‘0’ to prevent urine odor in the bathroom.
(SPACESAVER)
Ensure that filter box is installed with fan in
the top portion of the box.
Remove some filter material to allow
unobstructed venting of unit.
1. Check that the vent is installed above
the peak of the roof. If not, extend the
vent. Guide wires may be necessary.
2. Add lime to the evaporation chamber –
as much as you think necessary. You
will have to rake more often if you do
this.
3. (SPACESAVER) SUN-MAR has a filter
box available which will filter the
ammonia out of the vented air in a
downdraft situation. Call SUN-MAR for
details.
Begin following: “Compost troubleshooting”
suggestions.
1. If it is rattling, it may need to be cleaned
or the bearings are worn and the fan
needs to be replaced.
2. A hum is the normal sound the fan will
make. If you are in a very quiet setting it
will be more noticeable.
Install wall brackets on vent
pipe to prevent settling. DO
NOT install horizontal runs
as liquid will collect and
block ventilation, causing
odor.
The fan is a constantly
moving part and has a finite
service life.
Large amounts of carbon or
zeolite will prevent air flow.
Initially, install the vent
above the peak of the roof.
If symptoms occur, add lime
or a filter box.
(SPACESAVER)
Follow “Ongoing Main-
tenance” and use proper
bulking material.
Clean the fan with a small
brush and/or compressed
air nozzle once a year.
This will prevent wear and
lengthen the life of your fan.